To customize your “listen with” playlist, you can put all the songs you want to play in My Playlist, when you play the playlist and switched to on air, the songs will show in your listen with playlist.
In addition, to share your playlist, please refer to the following steps:
1. Launch KKBOX → tap on the playlist you want to share
2. Tap the [⋮] to the top right hand corner
3. Tap on “Share” and you can see the playlist in “Shared Playlist”.